One who does anything, good or bad; a doer; an agent. (Obs.)
2.
(Mach.)
(a)
One of the variables of a quantic as distinguished from a coefficient.
(b)
The multiplier. Note: The terms facient, faciend, and factum, may imply that the multiplication involved is not ordinary multiplication, but is either some specified operation, or, in general, any mathematical operation. See Multiplication.
... quem novit terminus orbis, Quemque simul mundi vidit uterque Polus; Si taceant homines, facient te sidera notum. Sol nescit comitis non ... — A General History and Collection of Voyages and Travels, Volume 14 • Robert Kerr